我爸爸是一位从事机械工作的操作员,经常使用锤子,所以我见过很多类型的锤子,这些锤子既占用很多空间又比较重。有一次,我问爸爸:“这么多的锤子,要是到外面去帮别人做事的话,怎么带啊?”爸爸说:“只能都拿去啊,有什么办法!”每次看着爸爸背着沉重的背包出门,我心中总不是滋味。我把这个问题告诉了发明小组的老师。有一天,老师带了一把可以换多种刀头的螺丝刀给我,叫我帮他拧各种型号的螺丝钉。做完之后,老师又拿出一把小锤子,对我说:“前一段,你对我说,小锤子有很多问题,你看了这把螺丝刀之后,有没有新的想法?”我眼珠一转,从可以换头的螺丝刀联想到可以换头的锤子!我经过几天的思索,设计了一把新锤子,它的一头是固定的锤头,锤头上有一根螺杆,再 My dad is an operator who works in machinery and often uses hammers, so I have seen many types of hammers that take up a lot of space and heavier weights. Once, I asked my father: “So many hammers, if outside to help others do things, how to bring ah?” “Dad said: ” can only be taken ah, what is the way! With my father carrying a heavy backpack, my heart is not always taste. I told the inventor of the problem on this issue. One day, the teacher brought me a screwdriver that could change a variety of knives and asked me to help him screw various types of knives. After that, the teacher took out a small hammer and said to me: “Some time ago, you told me that there are many problems with the small hammer. Have you seen any new ideas after you saw this screwdriver?” "I Eye turn, from the screwdriver can be changed to think of a head hammer can change! I think after a few days, designed a new hammer, it is a fixed hammer, Hammer has a screw, and then